The lac La Chesnaye is a freshwater body of the watershed of the rivière aux Anglais, located in the territory of the town of Baie-Comeau, in the Manicouagan Regional County Municipality, in the administrative region of Côte-Nord, in the province of Quebec, in Canada.

The eastern side of Lac La Chesnaye is served by a few forest roads connecting from the south to route 138.

This deformed lake surrounded by mountains is crossed to the east, then to the north, by the rivière aux Anglais.

[2] From the mouth of Lac La Chesnaye, the current descends on 11.2 km (7.0 mi) generally towards the south-east, following the course of the Rivière aux Anglais, in particular crossing the lake Unknown and the lac de la Rivière aux Anglais, to go to spill on the west shore of Baie aux Anglais, on the north shore of the estuary of Saint Lawrence.

[3] The term "Chesnaye" is a graphic form of old French; it means "Chênaie" (or Chesnaie), or a field planted with oaks [4] The toponym "Lac La Chesnaye" was formalized on December 5, 1968, at the Place Names Bank of the Commission de toponymie du Québec.